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Seiklussarja Ace Xdream finaal juba laupäeval (homme)

Seiklussarja Ace Xdream finaal

02.09.2011 06:29
Toimub: 02.09.2011

MTÜ Seiklusklubi Xdream

Pressiteade

Laupäeval 03.septembril toimub Valgehobusemäel seiklussarja Ace Xdream viimane osavõistlus, starti on oodata ligikaudu 800 osalejat. Esmakordselt katsetatakse Xdreami võistlusel eraldistardi formaati.

„Seiklusvõistluse korraldamine eeldab pidevaid uuendusi ja katsetusi, seekord proovime esmakordselt eraldistarti,“ kommenteerib Sten-Eric Uibo seiklusklubist Xdream. „See teeb kindlasti „ebamugavamaks“ nende võistkondade elu, kellel orienteerumine ei ole väga heal tasemel ning senini on kasutatud kaasvõistlejate abi kontrollpunktide leidmisel,“ lisab Uibo. Valgehobusemäel saavad selgeks ka seiklussarja kokkuvõttes parimad võistkonnad.

Ace Xdream on seiklusspordivõistlus, kus 3-liikmelised võistkonnad otsivad maastikule peidetud kontrollpunkte, läbides rada jalgsi, ratastel ja kanuuga.

Lisainfo: http://www.xdream.ee

Kontakt:

Sten-Eric Uibo

MTÜ Seiklusklubi Xdream

+372 50 12 872

sten-eric@xdream.ee

PIN-koode saab varastada termokaamera abil

PIN-koodi sisestamine jätab sularahaautomaadi klaviatuurile sõrmejäljed ning soojendab vajutatud klahve – just sellist infot võivad koguda moodsad vargad, kirjutab Tartu Ülikooli teadusuudiste portaal Novaator.ee.

Pangaautomaatide klaviatuuride ja numbrilukkudega seifide turvalisuse üle vaidlevad tehnikaeksperdid juba pikka aega. Võimaluse, et soojust tajuva kaamera abil saab teada sisestatud koodi, käis Google´i palgal olev turvaekspert Michał Zalewski välja juba 2005. aastal.

San Franciscos peetud arvutiteaduse assotsiatsiooni USENIX turbesümpoosionil esitlesid San Diegos asuva California ülikooli teadlased uurimust,  mis tõendas sellise turvariski olemasolu.

Keaton Mowery, Sarah Meiklejohn ja Stefan Savage kasutasid vabatahtlikke katsealuseid, kes sisestasid erinevaid juhuslikult valitud neljanumbrilisi PIN-koode nii plastist kui metallist klaviatuuridel.

Uurijad leidsid, et soojustundliku kaameraga saab PIN-koodi numbrid kindlaks teha 80 protsendil juhtudest. Ainus tingimus on, et pilt tuleb teha kohe pärast klahvide vajutamist.

Pooleteise minuti jooksul langeb klahvide tuvastamise tõenäosus 20 protsendini. Kuna metall juhib paremini soojust, on sellelt sõrmede jääksoojuse tabamine raskem kui plastpinnalt.

Teadlaste sõnul on sellisel kombel kuriteo sooritamine väga keerukas, kuid siiski võimalik. Termokaamera abil saab teada, milliseid numbriklahve inimene vajutas, kuid täpse numbrikombinatsiooni kindlaks tegemiseks on vaja võimast tarkvara.

Turvaeksperdid jagunesid ohu hindamisel kahte leeri. Ühed arvasid, et kuigi termokaamera abil võib kätte saada kõik PIN-koodi kuuluvad numbrid, on vähe tõenäoline, et kurikaelad saaksid taastada ka numbrite täpse järjestuse.

Kvaliteetsed termokaamerad maksavad palju ning lihtlabane varas neid endale lubada ei saa. Lisaks teevad petturite elu raskemaks sularahaautomaatide metallist klaviatuurinupud, mis annavad soojuse kiiresti ära.

Teiste arust on vargad kasu saamise nimel kõigeks valmis ning õige tarkvara abil saab ka soojuskaamera andmetest õige PIN-koodi kätte. Seepärast tasub valvel olla.

Tarbijakaitsjad soovitavad klahve vajutada näiteks pliiatsi või sõrmkübaraga. Arvutiteadlased pakkusid välja, et abiks võib olla ka see, kui enne koodi sisestamist asetada käelaba korraks klaviatuurile, et kõik nupud üles soojeneksid.

 

allikas: E24, Raigo Neudorf

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